/*header*/
.header{width: 100%;height:4.166rem; }
.top_back{float:left;width: 12%;height: 4.166rem;}
.top_title{font-size: 1.25rem;color: #333333;padding-top: 1.458rem; }
.top_home{float:right;width: 12%;height: 4.166rem;}


/*mycenter*/
.mycenter{width: 100%; height: 17.0883rem;}